2011年2月
beta-Decay Half-Lives of Very Neutron-Rich Kr to Tc Isotopes on the Boundary of the r-Process Path: An Indication of Fast r-Matter Flow
PHYSICAL REVIEW LETTERS
- 巻
- 106
- 号
- 5
- 開始ページ
- 052502/1-5
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevLett.106.052502
- 出版者・発行元
- AMER PHYSICAL SOC
The beta-decay half-lives of 38 neutron-rich isotopes from Kr-36 to Tc-43 have been measured; the half-lives of Kr-100, Sr103-105, Y106-108, Zr108-110, Nb-111,Nb-112, Mo112-115, and Tc-116,Tc-117 are reported here. The results when compared with previous standard models indicate an overestimation in the predicted half-lives by a factor of 2 or more in the A approximate to 110 region. A revised model based on the second generation gross theory of beta decay better predicts the measured half-lives and suggests a more rapid flow of the rapid neutron-capture process (r-matter flow) through this region than previously predicted.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.106.052502
- ISSN : 0031-9007
- Web of Science ID : WOS:000286986000001